2017 Multi-University Training Contest 1 solutions 1001 Add More Zero

<span style="color:rgb(68,68,68);font-family:Helvetica, Arial, sans-serif;font-size:14px;">´ð°¸¾ÍÊÇ</span><span style="border:0px;font-size:14px;vertical-align:baseline;color:rgb(68,68,68);font-family:Helvetica, Arial, sans-serif;"><span class="katex" style="border:0px;font-size:1.21em;vertical-align:baseline;font-family:'KaTeX_Main', 'Times New Roman', serif;line-height:1.2;"><span class="katex-mathml" style="border:0px;vertical-align:baseline;width:1px;overflow:hidden;">log10(2m1)</span><span class="katex-html" style="border:0px;vertical-align:baseline;display:inline-block;"><span class="strut" style="border:0px;vertical-align:baseline;display:inline-block;"></span><span class="strut bottom" style="border:0px;vertical-align:-.25em;display:inline-block;"></span><span class="base textstyle uncramped" style="border:0px;vertical-align:baseline;display:inline-block;"><span class="minner textstyle uncramped" style="border:0px;vertical-align:baseline;"><span class="mopen style-wrap reset-textstyle textstyle uncramped" style="border:0px;font-size:1em;vertical-align:baseline;"></span><span class="mop" style="border:0px;vertical-align:baseline;"><span class="mop" style="border:0px;vertical-align:baseline;">lo<span style="border:0px;vertical-align:baseline;">g</span></span><span class="msupsub" style="border:0px;vertical-align:baseline;"><span class="vlist" style="border:0px;vertical-align:baseline;display:inline-block;"><span style="border:0px;vertical-align:baseline;display:block;"><span class="fontsize-ensurer reset-size5 size5" style="border:0px;font-size:1em;vertical-align:baseline;display:inline-block;"><span style="border:0px;font-size:0em;vertical-align:baseline;"></span></span><span class="reset-textstyle scriptstyle cramped mtight" style="border:0px;font-size:.7em;vertical-align:baseline;display:inline-block;"><span class="mord scriptstyle cramped mtight" style="border:0px;vertical-align:baseline;"><span class="mord mathrm mtight" style="border:0px;vertical-align:baseline;">1</span><span class="mord mathrm mtight" style="border:0px;vertical-align:baseline;">0</span></span></span></span><span class="baseline-fix" style="border:0px;vertical-align:baseline;display:inline-table;table-layout:fixed;"><span class="fontsize-ensurer reset-size5 size5" style="border:0px;font-size:1em;vertical-align:baseline;display:inline-block;"><span style="border:0px;font-size:0em;vertical-align:baseline;"></span></span></span></span></span></span><span class="mopen" style="border:0px;vertical-align:baseline;">(</span><span class="mord" style="border:0px;vertical-align:baseline;"><span class="mord mathrm" style="border:0px;vertical-align:baseline;">2</span><span class="msupsub" style="border:0px;vertical-align:baseline;"><span class="vlist" style="border:0px;vertical-align:baseline;display:inline-block;"><span style="border:0px;vertical-align:baseline;display:block;"><span class="fontsize-ensurer reset-size5 size5" style="border:0px;font-size:1em;vertical-align:baseline;display:inline-block;"><span style="border:0px;font-size:0em;vertical-align:baseline;"></span></span><span class="reset-textstyle scriptstyle uncramped mtight" style="border:0px;font-size:.7em;vertical-align:baseline;display:inline-block;"><span class="mord mathit mtight" style="border:0px;vertical-align:baseline;font-family:'KaTeX_Math';font-style:italic;">m</span></span></span><span class="baseline-fix" style="border:0px;vertical-align:baseline;display:inline-table;table-layout:fixed;"><span class="fontsize-ensurer reset-size5 size5" style="border:0px;font-size:1em;vertical-align:baseline;display:inline-block;"><span style="border:0px;font-size:0em;vertical-align:baseline;"></span></span></span></span></span></span><span class="mbin" style="border:0px;vertical-align:baseline;"></span><span class="mord mathrm" style="border:0px;vertical-align:baseline;">1</span><span class="mclose" style="border:0px;vertical-align:baseline;">)</span><span class="mclose style-wrap reset-textstyle textstyle uncramped" style="border:0px;font-size:1em;vertical-align:baseline;"></span></span></span></span></span></span><span style="color:rgb(68,68,68);font-family:Helvetica, Arial, sans-serif;font-size:14px;">£¬×¢Òâµ½²»´æÔÚ</span><span style="border:0px;font-size:14px;vertical-align:baseline;color:rgb(68,68,68);font-family:Helvetica, Arial, sans-serif;"><span class="katex" style="border:0px;font-size:1.21em;vertical-align:baseline;font-family:'KaTeX_Main', 'Times New Roman', serif;line-height:1.2;"><span class="katex-mathml" style="border:0px;vertical-align:baseline;width:1px;overflow:hidden;">10k=2m</span><span class="katex-html" style="border:0px;vertical-align:baseline;display:inline-block;"><span class="strut" style="border:0px;vertical-align:baseline;display:inline-block;"></span><span class="strut bottom" style="border:0px;vertical-align:0em;display:inline-block;"></span><span class="base textstyle uncramped" style="border:0px;vertical-align:baseline;display:inline-block;"><span class="mord mathrm" style="border:0px;vertical-align:baseline;">1</span><span class="mord" style="border:0px;vertical-align:baseline;"><span class="mord mathrm" style="border:0px;vertical-align:baseline;">0</span><span class="msupsub" style="border:0px;vertical-align:baseline;"><span class="vlist" style="border:0px;vertical-align:baseline;display:inline-block;"><span style="border:0px;vertical-align:baseline;display:block;"><span class="fontsize-ensurer reset-size5 size5" style="border:0p